S-99607A139 8-32 x 1" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Excellent grip and torque application thanks to the knurled round head design, reducing slippage during manual adjustments
- High mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable, long-term performance
- Easy installation and removal with fully threaded UNC coarse thread and Class 2A fit for quick assembly
- Enhanced stability from the flared collar design, providing better seating and load distribution
- Wide compatibility with standard 8-32 UNC threaded components, ensuring seamless integration
- Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated industries
Professional Applications & Engineering Value
This 8-32 UNC thumb screw is engineered to address common industrial challenges such as frequent adjustments and exposure to corrosive conditions. The 18-8 stainless steel material offers excellent resistance to rust and oxidation, making it suitable for electronics, machinery, and outdoor equipment. The knurled head ensures a secure grip even with oily hands or gloves, reducing tool dependency and speeding up maintenance. Its fully threaded coarse spacing and Class 2A thread fit provide reliable engagement and vibration resistance in high-use scenarios, while the flared collar enhances clamping force distribution. Ideal for applications requiring repeated manual fastening without compromising durability or compliance.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with an 8-32 thread size, 0.164" thread diameter, and coarse spacing. It features a Class 2A thread fit for consistent accuracy and ease of assembly. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. Dimensions include a 1" length, 27/64" head diameter, and 11/32" collar diameter, all precision-machined for reliable performance in industrial settings.
